<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <style>
    .box {
      display: flex;
    }
    .box div {
      width: 50px;
      height: 100px;
      text-align: center;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .box div:nth-child(1) {
      background-color: #CBCFDB;
    }
    .box div:nth-child(2) {
      background-color: #3C3B40;
    }
    .box div:nth-child(3) {
      background-color: #E9C0BE;
    }
    .box div:nth-child(4) {
      background-color: #C7BEDB;
    }
    .box div:nth-child(5) {
      background-color: #9BCEEB;
    }
    .box div:nth-child(6) {
      background-color: #DABEB3;
    }
  </style>
</head>
<body>
  <div class="box">
    <div>1</div>
    <div>2</div>
    <div>3</div>
    <div>4</div>
    <div>5</div>
    <div>6</div>
  </div>
</body>
</html>